µOS++ IIIe Reference  v6.3.15
“Perfekt ist nicht gut genug”
The third edition of µOS++, a POSIX inspired open source system, written in C++.
ioctl.h File Reference

Go to the source code of this file.

Macros

#define _IO(type, nr)   _IOC(_IOC_NONE,(type),(nr),0)
 
#define _IOC(dir, type, nr, size)
 
#define _IOC_DIRBITS   2
 
#define _IOC_DIRMASK   ((1 << _IOC_DIRBITS)-1)
 
#define _IOC_DIRSHIFT   (_IOC_SIZESHIFT+_IOC_SIZEBITS)
 
#define _IOC_NONE   0U
 
#define _IOC_NRBITS   8
 
#define _IOC_NRMASK   ((1 << _IOC_NRBITS)-1)
 
#define _IOC_NRSHIFT   0
 
#define _IOC_READ   2U
 
#define _IOC_SIZEBITS   14
 
#define _IOC_SIZEMASK   ((1 << _IOC_SIZEBITS)-1)
 
#define _IOC_SIZESHIFT   (_IOC_TYPESHIFT+_IOC_TYPEBITS)
 
#define _IOC_TYPEBITS   8
 
#define _IOC_TYPECHECK(t)   (sizeof(t))
 
#define _IOC_TYPEMASK   ((1 << _IOC_TYPEBITS)-1)
 
#define _IOC_TYPESHIFT   (_IOC_NRSHIFT+_IOC_NRBITS)
 
#define _IOC_WRITE   1U
 
#define _IOR(type, nr, size)   _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size)))
 
#define _IOW(type, nr, size)   _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
 
#define _IOWR(type, nr, size)   _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))
 
#define BLKGETSIZE64   _IOR(0x12,114,size_t) /* get device size in bytes (u64 *arg) */
 
#define BLKPBSZGET   _IO(0x12,123) /* get block physical device sector size */
 
#define BLKSSZGET   _IO(0x12,104) /* get block logical device sector size */
 

Macro Definition Documentation

◆ _IO

#define _IO (   type,
  nr 
)    _IOC(_IOC_NONE,(type),(nr),0)

Definition at line 107 of file ioctl.h.

◆ _IOC

#define _IOC (   dir,
  type,
  nr,
  size 
)
Value:
(((dir) << _IOC_DIRSHIFT) | \
((type) << _IOC_TYPESHIFT) | \
((nr) << _IOC_NRSHIFT) | \
((size) << _IOC_SIZESHIFT))
#define _IOC_SIZESHIFT
Definition: ioctl.h:64
#define _IOC_NRSHIFT
Definition: ioctl.h:62
#define _IOC_DIRSHIFT
Definition: ioctl.h:65
#define _IOC_TYPESHIFT
Definition: ioctl.h:63

Definition at line 87 of file ioctl.h.

◆ _IOC_DIRBITS

#define _IOC_DIRBITS   2

Definition at line 54 of file ioctl.h.

◆ _IOC_DIRMASK

#define _IOC_DIRMASK   ((1 << _IOC_DIRBITS)-1)

Definition at line 60 of file ioctl.h.

◆ _IOC_DIRSHIFT

#define _IOC_DIRSHIFT   (_IOC_SIZESHIFT+_IOC_SIZEBITS)

Definition at line 65 of file ioctl.h.

◆ _IOC_NONE

#define _IOC_NONE   0U

Definition at line 76 of file ioctl.h.

◆ _IOC_NRBITS

#define _IOC_NRBITS   8

Definition at line 46 of file ioctl.h.

◆ _IOC_NRMASK

#define _IOC_NRMASK   ((1 << _IOC_NRBITS)-1)

Definition at line 57 of file ioctl.h.

◆ _IOC_NRSHIFT

#define _IOC_NRSHIFT   0

Definition at line 62 of file ioctl.h.

◆ _IOC_READ

#define _IOC_READ   2U

Definition at line 84 of file ioctl.h.

◆ _IOC_SIZEBITS

#define _IOC_SIZEBITS   14

Definition at line 50 of file ioctl.h.

◆ _IOC_SIZEMASK

#define _IOC_SIZEMASK   ((1 << _IOC_SIZEBITS)-1)

Definition at line 59 of file ioctl.h.

◆ _IOC_SIZESHIFT

#define _IOC_SIZESHIFT   (_IOC_TYPESHIFT+_IOC_TYPEBITS)

Definition at line 64 of file ioctl.h.

◆ _IOC_TYPEBITS

#define _IOC_TYPEBITS   8

Definition at line 47 of file ioctl.h.

◆ _IOC_TYPECHECK

#define _IOC_TYPECHECK (   t)    (sizeof(t))

Definition at line 94 of file ioctl.h.

◆ _IOC_TYPEMASK

#define _IOC_TYPEMASK   ((1 << _IOC_TYPEBITS)-1)

Definition at line 58 of file ioctl.h.

◆ _IOC_TYPESHIFT

#define _IOC_TYPESHIFT   (_IOC_NRSHIFT+_IOC_NRBITS)

Definition at line 63 of file ioctl.h.

◆ _IOC_WRITE

#define _IOC_WRITE   1U

Definition at line 80 of file ioctl.h.

◆ _IOR

#define _IOR (   type,
  nr,
  size 
)    _IOC(_IOC_READ,(type),(nr),(_IOC_TYPECHECK(size)))

Definition at line 108 of file ioctl.h.

◆ _IOW

#define _IOW (   type,
  nr,
  size 
)    _IOC(_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))

Definition at line 109 of file ioctl.h.

◆ _IOWR

#define _IOWR (   type,
  nr,
  size 
)    _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),(_IOC_TYPECHECK(size)))

Definition at line 110 of file ioctl.h.

◆ BLKGETSIZE64

#define BLKGETSIZE64   _IOR(0x12,114,size_t) /* get device size in bytes (u64 *arg) */

Definition at line 115 of file ioctl.h.

◆ BLKPBSZGET

#define BLKPBSZGET   _IO(0x12,123) /* get block physical device sector size */

Definition at line 116 of file ioctl.h.

◆ BLKSSZGET

#define BLKSSZGET   _IO(0x12,104) /* get block logical device sector size */

Definition at line 114 of file ioctl.h.